EN IEC 60269-7:2024

Low-voltage fuses - Part 7: Supplementary Requirements for fuse-links for the protection of batteries and battery systems

These supplementary requirements apply to fuse-links for the protection of batteries and battery systems, including, but not limited to terminology, for electricity storage in equipment for circuits of nominal voltages up to 1 500 V d.c. Their rated voltage may be higher than 1 500 V d.c. The object of these supplementary requirements is to establish the characteristics of Battery fuse-links in such a way that they can be replaced by other fuse-links having the same characteristics, provided that their dimensions are identical.

Niederspannungssicherungen - Teil 7: Zusätzliche Anforderungen an Sicherungseinsätze zum Schutz von Batterien und Batteriesystemen

Fusibles basse tension - Partie 7: Exigences supplémentaires concernant les éléments de remplacement utilisés pour la protection des batteries et des systèmes de batterie

IEC 60269-7:2021 Ces exigences supplémentaires s'appliquent aux éléments de remplacement utilisés pour la protection des batteries et des systèmes de batterie, y compris, entre autres, la terminologie, pour le stockage de l'électricité dans les équipements pour les circuits de tension nominale allant jusqu'à 1 500 V en courant continu.

Nizkonapetostne varovalke - 7. del: Dodatne zahteve za taljive vložke za zaščito baterij in baterijskih sistemov (IEC 60269-7:2021)

Te dodatne zahteve veljajo za taljive vložke za zaščito baterij in baterijskih sistemov, kar med drugim vključuje tudi terminologijo, v zvezi s shranjevanjem električne energije v opremi za tokokroge z nazivno enosmerno napetostjo do 1500 V.
Njihova nazivna napetost pri enosmernem toku je lahko večja od 1500 V.
Cilj teh dodatnih zahtev je določiti lastnosti baterijskih taljivih vložkov na način, da jih je mogoče zamenjati z drugimi taljivimi vložki, ki imajo enake lastnosti, pod pogojem, da so njihove mere enake.

General Information

• Status: Published
• Publication Date: 19-Dec-2024
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• Technical Committee: CLC/SR 32B - Low-voltage fuses
• Drafting Committee: IEC/SC 32B - IEC_SC_32B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 20-Dec-2024
• Completion Date: 20-Dec-2024
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: SIST EN IEC 60269-7:2025 - Low-voltage fuses - Part 7: Supplementary Requirements for fuse-links for the protection of batteries and battery systems (IEC 60269-7:2021)

Overview

EN IEC 60269-7:2024 - Low-voltage fuses, Part 7 - specifies supplementary requirements for fuse-links for the protection of batteries and battery systems. It complements IEC 60269-1 (general requirements) and applies to fuse-links intended for circuits of nominal voltages up to 1 500 V d.c. (their rated voltage may be higher). The standard’s objective is to define consistent characteristics so battery fuse-links are safely interchangeable when dimensions and declared characteristics match.

Key topics and requirements

• Scope & object: Definitions, application limits (battery and battery systems), and interchangeability requirements for battery fuse-links.
• Terms and definitions: Harmonised vocabulary specific to battery protection fuses to ensure consistent application.
• Conditions for operation in service: Environmental and electrical operating conditions relevant to battery systems.
• Characteristics of fuses: Time-current behaviour, conventional time/current ratings (e.g., “gBat” and “aBat” designations appear), and performance expectations tailored to battery fault profiles.
• Markings and construction: Marking requirements and standard construction conditions so replacements meet declared characteristics.
• Tests and verification: Mandatory test sequences and breaking-capacity tests (see tables for test surveys and values), including sample sizes and conditions for endurance and fault interruption.
• Informative annexes: Annex AA (examples of standardized fuse-links) and Annex BB (guidance for selecting fuses for battery systems).
• Normative references: Incorporates IEC 60269-1, IECEE OD-5014 and ISO/IEC 17025 among others.
• Regulatory linkage: Includes Annex ZZ detailing relationship to the EU Low Voltage Directive and presumption of conformity when cited in the Official Journal.

Applications and users

EN IEC 60269-7:2024 is essential for:

• Battery system designers and integrators (BESS, UPS, EVs, telecom backup, renewable energy storage)
• Fuse and component manufacturers developing battery-rated fuse-links
• Test and certification laboratories performing conformity and breaking-capacity tests
• Panel builders and OEMs specifying protective devices for DC battery circuits
• Regulatory and compliance teams using the standard to demonstrate conformity with the Low Voltage Directive

Practical benefits include improved safety for DC battery fault conditions, predictable interchangeability of replacement fuse-links, and standardized testing to support reliable battery protection design.

Related standards

• IEC 60269-1 (Low-voltage fuses - General requirements)
• IECEE OD-5014 (Conformity assessment schemes)
• ISO/IEC 17025 (Test laboratory competence)
• Relevant EN/HD standards referenced in Annex ZA for related installations and safety objectives

Keywords: EN IEC 60269-7:2024, low-voltage fuses, battery fuse-links, battery protection, battery systems, DC fuses, breaking capacity, fuse selection.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2025
Nizkonapetostne varovalke - 7. del: Dodatne zahteve za taljive vložke za zaščito
baterij in baterijskih sistemov (IEC 60269-7:2021)
Low-voltage fuses - Part 7: Supplementary Requirements for fuse-links for the protection
of batteries and battery systems (IEC 60269-7:2021)
Niederspannungssicherungen - Teil 7: Zusätzliche Anforderungen an
Sicherungseinsätze zum Schutz von Batterien und Batteriesystemen (IEC 60269-7:2021)
Fusibles basse tension - Partie 7: Exigences supplémentaires concernant les éléments
de remplacement utilisés pour la protection des batteries et des systèmes de
batterie (IEC 60269-7:2021)
Ta slovenski standard je istoveten z: EN IEC 60269-7:2024
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60269-7

NORME EUROPÉENNE
EUROPÄISCHE NORM December 2024
ICS 29.120.50
English Version
Low-voltage fuses - Part 7: Supplementary Requirements for
fuse-links for the protection of batteries and battery systems
(IEC 60269-7:2021)
Fusibles basse tension - Partie 7: Exigences Niederspannungssicherungen - Teil 7: Zusätzliche
supplémentaires concernant les éléments de remplacement Anforderungen an Sicherungseinsätze zum Schutz von
utilisés pour la protection des batteries et des systèmes de Batterien und Batteriesystemen
batterie (IEC 60269-7:2021)
(IEC 60269-7:2021)
This European Standard was approved by CENELEC on 2024-01-18. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60269-7:2024 E

European foreword
The text of document 32B/700/CDV, future edition 1 of IEC 60269-7, prepared by SC 32B "Low-
voltage fuses" of IEC/TC 32 "Fuses" was submitted to the IEC-CENELEC parallel vote and approved
by CENELEC as EN IEC 60269-7:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2025-06-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-12-20
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
For the relationship with EU Legislation, see informative Annex ZZ, which is an integral part of this
document.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60269-7:2021 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60086-4 NOTE Approved as EN IEC 60086-4
IEC 60364-4-41 NOTE Approved as HD 60364-4-41
IEC 60364-4-43 NOTE Approved as HD 60364-4-43
IEC 62485-5 NOTE Approved as EN IEC 62485-5
IEC 62485-6 NOTE Approved as EN IEC 62485-6
IEC 62620 NOTE Approved as EN 62620
IEC 62932-1 NOTE Approved as EN IEC 62932-1
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60269-1 - Low-voltage fuses – Part 1: General EN 60269-1 2007
requirements
+ A1 2009
+ A2 2014
IECEE OD-5014 2019 IEC System of Conformity Assessment - -
Ed.1 Schemes for Electrotechnical Equipment
and Components (IECEE System),
Committee of Testing Laboratories
(CTL), Instrument Accuracy Limits
ISO/IEC 17025 - General requirements for the EN ISO/IEC 17025 2017
competence of testing and calibration
laboratories
Dated as no EN equivalent exists.
Annex ZZ
(informative)
Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be
covered
This European standard has been prepared under a Commission’s standardisation request relating to
harmonised standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means
of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the
making available on the market of electrical equipment designed for use within certain voltage limits
[2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding safety objectives of
that Directive, and associated EFTA regulations.
Table ZZ.1 — Correspondence between this European standard and Annex I of Directive
2014/35/EU [2014 OJ L96]
Clause(s) / sub-clause(s)
Safety objectives of
Remarks / Notes
Directive 2014/35/EU
of this EN
(1)(a) Clause 6 None
(1)(b) Clause 7.1.2, Annex E7 None

(1)(c) See items 2 and 3 of this table None
(2)(a) Clause 7, 7.2, 7.9, 8.2, 8.5, 8.8 Must meet the requirements of

standard 61439 and
subsequent parts when
installed.
(2)(b) Clause 5.5, 5.6, 7.10, 8.3. 8.5 8.9 None
(2)(c) Clause 5.5, 5.6, 7.1, 7.3, 7.5, 7.11, None
7.13, 7.14, 8.3, 8.5, 8.8, 8.10
(2)(d) See item (2)(a) of this table None
(3)(a) Clause 7 None
(3)(b) Clause 7, 8 None
(3)(c) Clause 5.2 up to 5.8, 7.4, 7.5, None
7.10, 8.3, 8.4, 8.5, 8.10
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
IEC 60269-7 ®
Edition 1.0 2021-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low voltage fuses –
Part 7: Supplementary Requirements for fuse-links for the protection of
batteries and battery systems
Fusibles basse tension –
Partie 7: Exigences supplémentaires concernant les éléments de remplacement
utilisés pour la protection des batteries et des systèmes de batterie
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-4043-4
– 2 – IEC 60269-7:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 General . 6
2 Terms and definitions . 6
3 Conditions for operation in service . 8
5 Characteristics of fuses . 9
6 Markings. 10
7 Standard conditions for construction . 11
8 Tests . 11
Annex AA (informative) Examples of standardized fuse-links for the protection of
batteries and battery systems . 16
Annex BB (informative) Guidance for the selection of a fuse for the protection of
battery systems . 17
Bibliography . 18

Table 101 – Conventional times and currents for "gBat" fuse-links . 10
Table 102 – Survey of complete tests on fuse-links and number of fuse-links to be
tested . 12
Table 103 – Survey of tests on fuse-links of the smallest rated current of a
homogeneous series . 12
Table 104 – Values for breaking-capacity tests on "gBat" fuse-links . 14
Table 105 – Values for breaking-capacity tests on "aBat" fuse-link . 15

IEC 60269-7:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW VOLTAGE FUSES –
Part 7: Supplementary Requirements for fuse-links
for the protection of batteries and battery systems

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 60269-7 has been prepared by subcommittee 32B: Low-voltage fuses, of IEC technical
committee 32: Fuses. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
32B/700/CDV 32B/709/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This part is to be used in conjunction with IEC 60269-1, Low-voltage fuses – Part 1: General
requirements.
– 4 – IEC 60269-7:2021 © IEC 2021
This Part 7 supplements or modifies the corresponding clauses or subclauses of Part 1. Where
no change is necessary, this Part 7 indicates that the relevant clause or subclause of Part 1
applies.
Tables and figures which are additional to those in Part 1 are numbered starting from 101.
Additional annexes are lettered AA, BB, etc.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts of the IEC 60269 series, under the general title: Low-voltage fuses, can be
found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IEC 60269-7:2021 © IEC 2021 – 5 –
INTRODUCTION
This document specifically supports the UN goals:
No. 7: Affordable and clean energy
No. 9: Industry, innovation and infrastructure
No. 11: Sustainable cities and communities
No. 12: Responsible consumption and communities

– 6 – IEC 60269-7:2021 © IEC 2021
LOW VOLTAGE FUSES –
Part 7: Supplementary Requirements for fuse-links
for the protection of batteries and battery systems

1 General
Fuse-links for the protection of battery energy systems shall comply with aIl requirements of
IEC 60269-1, if not otherwise indicated hereinafter, and shall also comply with the
supplementary requirements laid down below.
1.1 Scope and object
These supplementary requirements apply to fuse-links for the protection of batteries and battery
systems, including, but not limited to terminology, for electricity storage in equipment for circuits
of nominal voltages up to 1 500 V DC.
Their rated voltage can be higher than 1 500 V DC.
The object of these supplementary requirements is to establish the characteristics of battery
fuse-links in such a way that they can be replaced by other fuse-links having the same
characteristics, provided that their dimensions are identical.
1.2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60269-1, Low-voltage fuses - Part 1: General requirements
IECEE OD-5014, IEC System of Conformity Assessment Schemes for Electrotechnical
Equipment and Components (IECEE System), Committee of Testing Laboratories
(CTL),Instrument Accuracy Limits
ISO/IEC 17025, General requirements for the competence of testing and calibration
laboratories
2 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60269-1 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp

IEC 60269-7:2021 © IEC 2021 – 7 –
2.1 General terms
2.1.101
battery
one or more cells fitted with devices necessary for use, for example case, terminals, markings
and protective devices etc., as necessary for use
[SOURCE: IEC 60050-482:2004, 482-01-04, modified (replacement of "marking and protective
devices” by “markings and protective devices etc., as necessary for use”)]
2.1.102
cell
basic functional unit, consisting of an assembly of electrodes, electrolyte, container, terminals
and usually separators, that is a source of electric energy obtained by direct conversion of
chemical energy
[SOURCE: IEC 60050-482:2004, 482-01-01, modified (removal of NOTE)]
2.1.103
battery module
group of cells connected together, either in a series and/or parallel configuration with or without
protective devices (e.g. fuse or PTC: Positive Temperature Coefficient) and monitoring circuitry
2.1.104
battery system
battery s
...